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Balance the reaction of sulfuric acid with sodium hydroxide.


H2SO4 + NaOH → Na2SO4 + H2O

How many moles of sodium sulfate are produced when 33.3 moles of sodium hydroxide completely react with sulfuric acid.

Dec 8th, 2014

For balancing the equation, set the unit of H2SO4 as 1, then on the right side Na2SO4 has to be 1 unit to balance (SO4)2-. Then on the right side there are 2 units of Na, which makes the NaOH on the left side has to be 2 units. Now what is unbalanced is the 4H and 2O on the left side, which is equal to 2H2O on the right side.

So the final reaction equation is 

H2SO4 +2NaOH → Na2SO4 +2H2O

The molar ration between Na2SO4 and NaOH is 1:2.

So when 33.3 moles of NaOH completely react with H2SO4, 33.3x1/2=16.65 moles of Na2SO4 are produced.

Dec 8th, 2014

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